USB voltage data logger with multi-graph display on the software with customizable alarm limits and access password

VoltUSB-L is a voltage data logger with display directly connected to the PC USB port to be programmed and downloaded. Using the DGraph software, downloadable from Tecnosoft website, it is possible to display data, analyse them, print reports and export them in excel and other formats. The logger has status and battery LEDs and a button to start acquisitions. Battery is user replaceable.

There are also models for temperature, humidity, pressure, current monitoring.


DGraph 6.1 - Complete software (USB drivers included)
USB data loggers - USB drivers

Software download and related accessories


Main features

  • Multi-Graph display on the software
  • Status LEDs and start button with customizable alarm limits
  • Customizable access password for the logger
  • Long battery life
  • Possibility of calibration over 2 points


  • No extra accessory: just connect the logger to your PC USB port and you are ready to go
  • Easy to use
  • Large selection of models and versions

The system

VoltUSB-L data logger does not need of any additional accessory. Just download the DGraph software and you are ready to start using it.

Dimensions 123 X 37 X 23 (mm)
Weight 58 gr
Voltage reading range From 0 to 30 V
Voltage resolution 40 mV
Voltage accuracy ± 1%
Memory (n. of acquisitions) 64 Kbytes
Acquisition step From 1 every 2 seconds to 1 every 12 hours
Display and functions Current value for each channel, acquisition and battery status indication
Buttons and functions Start, status, limits check
Functions LED for status: acquisition, stand by, out of limits
Communication USB
Battery life Nearly 3 years with 1 minute acquisition step

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